Use PVR Calculator when you need to compute pulmonary vascular resistance from mean PAP, left atrial pressure, and cardiac output. Enter Mean pulmonary artery pressure, Left atrial pressure, and Cardiac output using the definitions and units below so the result can be reproduced.

Mean pulmonary artery pressure

A finite measured or assumed value, expressed in mmHg.

Left atrial pressure

A finite measured or assumed value, expressed in mmHg.

Cardiac output

A finite measured or assumed value greater than or equal to 5e-324, expressed in L/min.

The published tool contract uses this rule: Compute pulmonary vascular resistance from mean PAP, left atrial pressure, and cardiac output.^[1]

Pulmonary vascular resistance

The calculated pulmonary vascular resistance in Wood units.

The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability. It is informational and cannot diagnose a condition, select treatment, or replace professional interpretation of the original measurements.

Retain the original Mean pulmonary artery pressure, Left atrial pressure, and Cardiac output values and their units alongside the result. SVR Calculator is useful when you instead need to compute systemic vascular resistance from MAP, CVP, and cardiac output. Airway Resistance provides another view by helping you compute airway resistance as peak pressure minus plateau pressure divided by inspiratory flow.

• SVR Calculator

  Compute systemic vascular resistance from MAP, CVP, and cardiac output.

• Airway Resistance

  Compute airway resistance as peak pressure minus plateau pressure divided by inspiratory flow.

• Total Airway Resistance

  Compute total airway resistance as the difference between peak inspiratory pressure and pause plateau pressure divided by inspiratory flow.